# # Data product developed by Dr. E. Thiemann from the # Laboratory for Atmospheric and Space Physics, Boulder, Colorado # in the frame of the PROBA2 guest investigator program. # # Please address your questions to E. Thiemann (thiemann@lasp.colorado.edu) and # to the LYRA Principal Investigator M. Dominique (marie.dominique@oma.be) # # PROBA2 data products are open to all. # Users should however refer to the following paper: http://arxiv.org/abs/1708.08833 # and acknowledge the instrument according to the rules described # at http://proba2.oma.be/data/termsOfUse in their papers and presentations # # Website reference http://proba2.oma.be/lyra/data/EarthAtmosphere/ # # Description: # Summed neutral N2 and O number density profiles, spanning altitudes between 150 and 400 km # retrieved from LYRA data acquired during occultations by the unit 3 (backup unit) zirconium # channel (bandpass: 1-2 nm + 6-20 nm). # # Radial distance is the distance from the center of Earth expressed in km to which the density corresponds. # Density O-N2 provides the summed number density of neutral O and N2 in units of radial distance and cm^-3. # The systematic error is a signed value (asymmetric) in fractional units and is primarily from the error made by # assuming that the absorption cross-sections of O and N2 are equal; a secondary source of systematic error is # from using a single-scale height atmosphere in the reference atmosphere used by the retrieval algorithm. # The random error is an unsigned value (to be applied symmetrically to the measurement) in fractional # units and gathers the uncertainties from solar spectra, solar variability and measurement noise. # Both uncertainties are described in http://arxiv.org/abs/1708.08833. # The Longitude and Latitude (in degrees) columns refer to the tangential point along the # line-of-sight, where most of the absorption occurs. # # Scale height = 55.377466 km # Date (UTC) = 2014-12-29T10:56:08.514 # Date (julian) = 2457020.95565410 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6494.5099 5.2710610e+10 0.021960938 0.030627688 91.905645 31.374116 6496.4172 4.9919171e+10 0.027785665 0.031202821 91.952218 31.284297 6498.3245 4.6634109e+10 0.033738242 0.031777954 91.998787 31.192429 6500.2317 4.3712423e+10 0.040011574 0.032353087 92.045353 31.099295 6502.1390 4.1436526e+10 0.046815777 0.032928219 92.091920 31.006162 6504.0463 3.9131553e+10 0.054044032 0.033503352 92.144337 30.908195 6505.9535 3.6635406e+10 0.061636168 0.034078485 92.200468 30.807160 6507.8608 3.4142565e+10 0.069694539 0.034653618 92.256599 30.706126 6509.7681 3.1776946e+10 0.078323238 0.035228750 92.303746 30.615638 6511.6754 2.9791027e+10 0.087732802 0.035803883 92.350312 30.525830 6513.5826 2.7984396e+10 0.097826890 0.036379016 92.396879 30.436023 6515.4899 2.6277173e+10 0.10854589 0.036954149 92.443445 30.346216 6517.3972 2.4689262e+10 0.11987292 0.037529281 92.490012 30.256408 6519.3044 2.3189957e+10 0.13173457 0.038104414 92.536578 30.166600 6521.2117 2.1803030e+10 0.14409534 0.038679547 92.583151 30.076782 6523.1190 2.0429536e+10 0.15362757 0.039208604 92.629723 29.986963 6525.0263 1.9201662e+10 0.16183698 0.039779218 92.676296 29.897143 6526.9335 1.8081155e+10 0.16813218 0.040646787 92.722863 29.807336 6528.8408 1.7043351e+10 0.17251057 0.042109495 92.769430 29.717529 6530.7481 1.6084213e+10 0.17605030 0.044875991 92.815996 29.627722 6532.6553 1.5085550e+10 0.17870988 0.047231667 92.864463 29.527652 6534.5626 1.4012905e+10 0.17846691 0.048101944 92.913108 29.426617 6536.4699 1.2968434e+10 0.17688120 0.048210926 92.961251 29.328296 6538.3772 1.2052502e+10 0.17636110 0.049340340 93.007818 29.238488 6540.2844 1.1302752e+10 0.17561113 0.050988477 93.054384 29.148680 6542.1917 1.0668612e+10 0.17345070 0.051075021 93.100170 29.058870 6544.0990 1.0079389e+10 0.17147374 0.051724642 93.143418 28.969051 6546.0063 9.5337730e+09 0.16949981 0.052469670 93.186666 28.879232 6547.9135 9.0328501e+09 0.16871609 0.053634760 93.230675 28.789415 6549.8208 8.5669699e+09 0.16750974 0.054802735 93.277241 28.699608 6551.7281 8.1303155e+09 0.16593244 0.055491314 93.323808 28.609801 6553.6353 7.7145469e+09 0.16413529 0.055015691 93.370837 28.517493 6555.5426 7.2786597e+09 0.16251916 0.054397442 93.419483 28.416458 6557.4499 6.8375519e+09 0.16091272 0.053584120 93.468128 28.315423 6559.3572 6.3955798e+09 0.15864201 0.052346869 93.513799 28.220568 6561.2644 6.0178520e+09 0.15616399 0.051242378 93.557042 28.130761 6563.1717 5.7034072e+09 0.15400328 0.049729753 93.600284 28.040953 6565.0790 5.4201659e+09 0.15194402 0.048228727 93.643525 27.951145 6566.9862 5.1708669e+09 0.14975307 0.046624971 93.686764 27.861338 6568.8935 4.9341056e+09 0.14739679 0.044950312 93.730004 27.771531 6570.8008 4.7155591e+09 0.14574593 0.044585797 93.773247 27.681717 6572.7081 4.5189212e+09 0.14398418 0.043824670 93.816492 27.591898 6574.6153 4.3220297e+09 0.14198052 0.042559465 93.859737 27.502079 6576.5226 4.1194186e+09 0.14013111 0.040769871 93.905854 27.406298 6578.4299 3.9064435e+09 0.13817760 0.037970798 93.954503 27.305264 6580.3371 3.6810646e+09 0.13655785 0.036209184 94.003151 27.204229 6582.2444 3.4813885e+09 0.13504271 0.035227283 94.047152 27.112841 6584.1517 3.3172097e+09 0.13333637 0.034432882 94.090392 27.023033 6586.0590 3.1718816e+09 0.13171686 0.033170534 94.133631 26.933226 6587.9662 3.0362205e+09 0.13066838 0.033372449 94.176871 26.846255 6589.8735 2.9073938e+09 0.12896880 0.031313030 94.220111 26.759774 6591.7808 2.7885111e+09 0.12678201 0.028320898 94.263351 26.673292 6593.6880 2.6794204e+09 0.12478604 0.026462548 94.303781 26.583986 6595.5953 2.5877415e+09 0.12239861 0.025685307 94.343702 26.494167 6597.5026 2.4926305e+09 0.12039931 0.025564129 94.383622 26.404348 6599.4099 2.3950529e+09 0.11900140 0.024954381 94.430874 26.305105 6601.3171 2.2865879e+09 0.11878176 0.027195041 94.479519 26.204070 6603.2244 2.1611657e+09 0.11777615 0.026530427 94.526699 26.105479 6605.1317 2.0551574e+09 0.11710491 0.026775509 94.566614 26.018998 6607.0389 1.9591388e+09 0.11579741 0.025630089 94.606529 25.932517 6608.9462 1.8845162e+09 0.11274134 0.023707353 94.646445 25.845499 6610.8535 1.8193723e+09 0.10976038 0.024818470 94.686360 25.755691 6612.7608 1.7536675e+09 0.10837811 0.023752339 94.726275 25.665884 6614.6680 1.6923092e+09 0.10717532 0.023480243 94.767544 25.574336 6616.5753 1.6204852e+09 0.10593090 0.023372593 94.816189 25.473301 6618.4826 1.5483551e+09 0.10565240 0.024135200 94.864835 25.372266 6620.3898 1.4796626e+09 0.10532199 0.024892826 94.909269 25.278250 6622.2971 1.4153097e+09 0.10442304 0.024678909 94.949189 25.191757 6624.2044 1.3625390e+09 0.10294606 0.024971720 94.989110 25.105265 6626.1117 1.3154815e+09 0.10202448 0.026448633 95.029027 25.017192 6628.0189 1.2737419e+09 0.10060452 0.025710783 95.068940 24.927386 6629.9262 1.2368073e+09 0.099413126 0.025941643 95.108852 24.837579 6631.8335 1.1913391e+09 0.097851712 0.026015430 95.151113 24.744252 6633.7408 1.1446229e+09 0.096624185 0.026281581 95.196018 24.646959 6635.6480 1.0932810e+09 0.095415233 0.026496969 95.240923 24.549666 6637.5553 1.0426573e+09 0.094419311 0.025889445 95.281847 24.458346 6639.4626 1.0064309e+09 0.093759487 0.025462743 95.321763 24.368538 6641.3698 9.7190193e+08 0.094059552 0.025149556 95.361678 24.278730 6643.2771 9.3823830e+08 0.093386266 0.025234459 95.402581 24.182998 6645.1844 9.0373227e+08 0.092388810 0.025538061 95.443743 24.085705 6647.0917 8.6286966e+08 0.091248560 0.026486036 95.484758 23.989303 6648.9989 8.2307017e+08 0.090036007 0.027632969 95.524675 23.899483 6650.9062 7.9348162e+08 0.089590593 0.026462691 95.564593 23.809664 6652.8135 7.6694647e+08 0.089023419 0.027474339 95.604511 23.720222 6654.7207 7.4406936e+08 0.087811218 0.027729183 95.644426 23.633741 6656.6280 7.2548249e+08 0.085930161 0.028574621 95.684342 23.547260 6658.5353 7.0318949e+08 0.084597806 0.031010417 95.724390 23.459227 6660.4426 6.7744064e+08 0.083528514 0.032028260 95.765552 23.358193 6662.3498 6.4905476e+08 0.082465068 0.032847997 95.806715 23.257159 6664.2571 6.2297210e+08 0.081522721 0.031265370 95.847335 23.162445 6666.1644 5.9539718e+08 0.081706441 0.026940625 95.887248 23.075963 6668.0716 5.7999156e+08 0.081040591 0.027534174 95.927160 22.989482 6669.9789 5.6560851e+08 0.080523651 0.027350288 95.967608 22.898375 6671.8862 5.5002606e+08 0.080271396 0.026877977 96.008771 22.801082 6673.7935 5.3983606e+08 0.079534458 0.028645893 96.049933 22.703789 6675.7007 5.2123643e+08 0.077654347 0.031140513 96.090157 22.612142 6677.6080 5.0461005e+08 0.076366891 0.031493879 96.130078 22.522323 6679.5153 4.8911626e+08 0.076103235 0.029841972 96.169998 22.432504 6681.4225 4.6957145e+08 0.076901949 0.029981529 96.210850 22.337083 6683.3298 4.5086480e+08 0.077298453 0.031671932 96.252012 22.239791 6685.2371 4.3412366e+08 0.077015822 0.032955262 96.293175 22.142498 6687.1444 4.1467891e+08 0.075345619 0.034262388 96.334338 22.045204 6689.0516 3.9751752e+08 0.072773626 0.033969547 96.375500 21.947911 6690.9589 3.8203666e+08 0.071954466 0.033005972 96.414812 21.854994 6692.8662 3.6754784e+08 0.071159292 0.031759490 96.451400 21.768513 6694.7734 3.5490548e+08 0.070456557 0.030176999 96.487988 21.682032 6696.6807 3.4019828e+08 0.070025132 0.029958611 96.526399 21.591244 6698.5880 3.2740271e+08 0.068998136 0.031024903 96.567561 21.493952 6700.4953 3.1316196e+08 0.067535519 0.031035069 96.608724 21.396660 6702.4025 3.0214805e+08 0.066612656 0.033198156 96.649886 21.299368 6704.3098 2.8583915e+08 0.067053820 0.036329685 96.691049 21.202075 6706.2171 2.7116902e+08 0.067149294 0.038824212 96.731966 21.105184 6708.1244 2.6116352e+08 0.066952370 0.040178991 96.768552 21.015376 6710.0316 2.4983849e+08 0.066041324 0.040502684 96.805138 20.925568 6711.9389 2.4426703e+08 0.064158045 0.041760436 96.841940 20.835406 6713.8462 2.3806035e+08 0.062324531 0.046747022 96.883109 20.738099 6715.7534 2.3196389e+08 0.060859834 0.048149182 96.924277 20.640791 6717.6607 2.2743191e+08 0.059027505 0.049833401 96.965444 20.543489 6719.5680 2.1642960e+08 0.057662865 0.050830216 97.006606 20.446197 6721.4753 2.0692996e+08 0.058058829 0.050447095 97.047769 20.348904 6723.3825 1.9541045e+08 0.056927941 0.049582284 97.085716 20.259211 6725.2898 1.8811350e+08 0.053121138 0.041394999 97.122304 20.172730 6727.1971 1.8475899e+08 0.051799769 0.040697836 97.158893 20.086249 6729.1043 1.7812873e+08 0.051526493 0.040975882 97.196060 19.992237 6731.0116 1.7302848e+08 0.049936756 0.041773133 97.233480 19.894945 6732.9189 1.6470163e+08 0.048985243 0.043909372 97.270990 19.797652 6734.8262 1.5937067e+08 0.048921245 0.049303892 97.312153 19.700359 6736.7334 1.5256299e+08 0.050512895 0.053127768 97.353315 19.603066 6738.6407 1.4436030e+08 0.051417905 0.060848429 97.394478 19.505774 6740.5480 1.3770323e+08 0.050820997 0.064986474 97.435641 19.408481 6742.4552 1.3362678e+08 0.048298157 0.069720033 97.476803 19.311188 6744.3625 1.3065121e+08 0.044462176 0.078073807 97.515423 19.216438 6746.2698 1.3069995e+08 0.042539397 0.075850724 97.552842 19.122887 6748.1771 1.2577360e+08 0.039693386 0.067948402 97.590262 19.029296 6750.0843 1.2276125e+08 0.037038780 0.072148127 97.627690 18.932002 6751.9916 1.1897952e+08 0.034382578 0.074130925 97.665118 18.834695 6753.8989 1.1416636e+08 0.033484652 0.075886204 97.703798 18.737392 6755.8061 1.1218574e+08 0.031273271 0.074251902 97.744961 18.640100 6757.7134 1.0587286e+08 0.030269862 0.074575030 97.786123 18.542807 6759.6207 1.0551837e+08 0.030806566 0.075969737 97.824805 18.445514 6761.5280 1.0310534e+08 0.032696670 0.078011845 97.862225 18.348220 6763.4352 1.0185806e+08 0.036380185 0.077763269 97.899645 18.250927 6765.3425 1.0017590e+08 0.038156044 0.079593718 97.937065 18.153634 6767.2498 94919065. 0.037230188 0.081696083 97.974484 18.056341 6769.1570 91884117. 0.032739405 0.084835167 98.013095 17.960239 6771.0643 87065767. 0.029147154 0.089461139 98.054257 17.866688 6772.9716 83699811. 0.025510781 0.094087112 98.095420 17.773137 6774.8789 82277405. 0.021830873 0.098713084 98.134165 17.677170 6776.7861 80780256. 0.018151695 0.10333906 98.171585 17.579877 6778.6934 77301445. 0.014491118 0.10796503 98.209005 17.482585 6780.6007 74590539. 0.010811028 0.11259100 98.251629 17.371759 6782.5079 72734737. 0.0071339452 0.11721697 98.294396 17.260564 6784.4152 70900812. 0.0034756699 0.12184295 98.333768 17.158200 6786.3225 69682532. -0.00016203441 0.12646892 98.371191 17.060907 6788.2298 67310606. -0.0038029349 0.13109489 98.408613 16.963614 6790.1370 66819196. -0.0074234749 0.13572086 98.446033 16.869924 6792.0443 63343358. -0.011100743 0.14034684 98.483453 16.776374 6793.9516 62245943. -0.014749904 0.14497281 98.520872 16.681736 6795.8589 63006635. -0.018359692 0.14959878 98.558292 16.584444 6797.7661 65526458. -0.021927189 0.15422475 98.595712 16.487152 6799.6734 66996231. -0.025553433 0.15885073 98.636437 16.383910 6801.5807 60968617. -0.029577110 0.16347670 98.679203 16.276992 6803.4879 53184459. -0.034008328 0.16810267 98.720473 16.172769 6805.3952 48992237. -0.038688834 0.17272865 98.757893 16.075475 6807.3025 51154720. -0.043298921 0.17735462 98.795313 15.978181 6809.2098 51622836. -0.050182805 0.18198059 98.835983 15.875040 6811.1170 50652133. -0.074400943 0.18660656 98.878752 15.768123 6813.0243 46259503. -0.061951637 0.19123254 98.919075 15.663794 6814.9316 43231096. -0.024030592 0.19585851 98.952756 15.566487